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Topic starter
is my map sensor bad if it reads -2.5 psi with the engine off and key on. it responds to my boost but it is always at -2.5 when there is no vacuum or boost. any help is appreciated.
Posted : 07/06/2012 8:36 pm
Hi!
Are you in a high altitude location (ie: not near(ish) sea-level)?
The MAP sensor isn't compensated for atmospheric pressure - it's an absolute reading, so if you are in a high altitude area, you may need to use the 'boost adjust' in the vehicle profile settings, to counter for the -2.5psi you are seeing
Also, what fuel type are you (and have you setup the vehicle profile accordingly with the engine displacement, and fuel type it uses?)
Posted : 07/06/2012 9:01 pm
Topic starter
thanks for your help. i am at 5100 feet and have a diesel engine 6.0 L I have setup the vehicle profile. I have plugged it in to 2 other trucks and both trucks read 0.0 psi with key on engine off.
Posted : 07/06/2012 9:15 pm
